andrewmccallum/factorie — pull request #1 by alextp (2013-09-26 18:20:20+00:00)
Title: Fixing the type issue with the new spans

They key problem is that if T extends TokenSpan, T extends SpanVar[TokenSpan], not SpanVar[T]. Since I don't want to propagate these type arguments all the way down to concrete spans I decided to break the hierarchy in the span level.